A new dialysis-ion exchange technique for determining the forms of trace metals in water

BT Hart; SHR Davies

doi:10.1071/mf9770105

A new dialysis-ion exchange technique for determining the forms of trace metals in water

Marine and Freshwater Research ◽

10.1071/mf9770105 ◽

1977 ◽

Vol 28 (1) ◽

pp. 105 ◽

Cited By ~ 32

Author(s):

BT Hart ◽

SHR Davies

Keyword(s):

Trace Metals ◽

Ion Exchange ◽

Water Samples ◽

Ionic Species ◽

Deionized Water ◽

Optimum Time ◽

River Water Samples ◽

Time Period ◽

Dialysis Experiment ◽

Exchange Technique

A new separation technique is described which should aid attempts to determine the physicochemical forms of trace metals in aquatic systems. The technique involves combined dialysis and ion exchange, and permits the dialysis experiment to be completed in times very much shorter than normal. Experiments reported in this paper indicated that an optimum time of 5 h was necessary for complete dialysis of all dialysable species from natural water samples. The method has been tested for Cd, Cu, Pb, Zn and Fe in synthetic solutions prepared from distilled-deionized water. In all cases it was apparent that, within the precision of the technique, almost 100% of the added trace metals was dialysed in the 5-h time period. The results give in- formation on the concentration of ionic species present in the water. Three natural river water samples were also dialysed, and the results compared with total and filterable (< 0.4 �m) trace metal concentrations obtained for the same samples.

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Ion-exclusion chromatography of silicate ion in sea and river water samples by an ion-exchange enhancement of conductivity detection

BUNSEKI KAGAKU ◽

10.2116/bunsekikagaku.53.1481 ◽

2004 ◽

Vol 53 (12) ◽

pp. 1481-1486 ◽

Cited By ~ 9

Author(s):

Masanobu MORI ◽

Kazuhiko TANAKA ◽

Hiroshi TAODA ◽

Mikaru IKEDO ◽

Wenzhi HU

Keyword(s):

Ion Exchange ◽

River Water ◽

Water Samples ◽

Conductivity Detection ◽

River Water Samples ◽

Ion Exclusion Chromatography ◽

Ion Exclusion ◽

Exclusion Chromatography ◽

Exchange Enhancement

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PHYSICO-CHEMICAL ASPECTS OF YAMUNA RIVER AT GOKUL BARRAGE, MATHURA (UP) INDIA

FLORA AND FAUNA ◽

10.33451/florafauna.v23i2pp359-362 ◽

2017 ◽

Vol 23 (2) ◽

Author(s):

AJAY KUMAR RAJAWAT ◽

PRAVEEN KUMAR

Keyword(s):

Water Samples ◽

Suspended Solids ◽

Total Dissolved Solids ◽

Tolerance Limit ◽

Chemical Condition ◽

Yamuna River ◽

Dissolved Solids ◽

Time Period ◽

Physico Chemical ◽

Almost All

An attempt has been made to study the Physico-chemical condition of water of Yamuna River at Gokul Barrage, Mathura, (UP). The time period of study was July 2015 to June 2016. Three water samples were selected from different sites in each month for study. The parameters studied were Temperature, Turbidity, pH, DO, BOD, COD, Total Dissolved Solids and Suspended Solids. Almost all the parameters were found above the tolerance limit.

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Faculty Opinions recommendation of Conjugative transfer of the IncP-7 carbazole degradative plasmid, pCAR1, in river water samples.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.1091365.545802 ◽

2007 ◽

Author(s):

Peter Williams

Keyword(s):

River Water ◽

Water Samples ◽

Conjugative Transfer ◽

River Water Samples ◽

Degradative Plasmid

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ION Exchange Characterisation of Modified Zeolite

Water Science & Technology ◽

10.2166/wst.1992.0713 ◽

1992 ◽

Vol 26 (9-11) ◽

pp. 2269-2272 ◽

Cited By ~ 3

Author(s):

Š Cerjan-Stefanovic ◽

M. Kaštelan-Macan ◽

T. Filipan

Keyword(s):

Drinking Water ◽

Ion Exchange ◽

Anion Exchange ◽

Natural Zeolite ◽

Deionized Water ◽

Isomorphous Substitution ◽

Waste Waters ◽

Modified Zeolite ◽

Water Drinking

Isomorphous substitution of phosphorus into a natural zeolite affords the possibility to change the overall framework charge from negative to positive. The substances so created should be used for purification of waste waters. The work describes the preparation of phosphated zeolite, their characterisation and examples of their anion exchange of NO3 on observed in deionized water, drinking water and in the solution containing varying amounts of nitrate.

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Fabrication of dendritic nanoporous gold via a two-step amperometric approach: Application for electrochemical detection of methyl parathion in river water samples

Talanta ◽

10.1016/j.talanta.2021.122130 ◽

2021 ◽

Vol 226 ◽

pp. 122130

Author(s):

Gilberto J. Silva Junior ◽

Jéssica Soares Guimarães Selva ◽

Anandhakumar Sukeri ◽

Josué M. Gonçalves ◽

Matias Regiart ◽

...

Keyword(s):

River Water ◽

Electrochemical Detection ◽

Water Samples ◽

Methyl Parathion ◽

Nanoporous Gold ◽

River Water Samples

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Modified paramagnetic beads in a microfluidic system for the determination of ethinylestradiol (EE2) in river water samples

Biosensors and Bioelectronics ◽

10.1016/j.bios.2009.10.031 ◽

2010 ◽

Vol 25 (6) ◽

pp. 1376-1381 ◽

Cited By ~ 48

Author(s):

Noelia A. Martínez ◽

Rudolf J. Schneider ◽

Germán A. Messina ◽

Julio Raba

Keyword(s):

River Water ◽

Water Samples ◽

Microfluidic System ◽

River Water Samples ◽

Paramagnetic Beads

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Significance of building and plumbing specifics on trace metal concentrations in drinking water

Canadian Journal of Civil Engineering ◽

10.1139/l91-111 ◽

1991 ◽

Vol 18 (6) ◽

pp. 893-903 ◽

Cited By ~ 11

Author(s):

Inderjit Singh ◽

Donald S. Mavinic

Keyword(s):

Drinking Water ◽

Trace Metals ◽

Trace Metal ◽

Water Samples ◽

First Flush ◽

Single Family ◽

Metal Concentrations ◽

Building Height ◽

High Rise ◽

Family House

Samples were taken from 72 high-rise apartment suites (6 suites in 12 individual high-rise towers) and 60 single-family houses located within the Greater Vancouver Regional District. The influence of the following factors on trace metal concentrations in 1-L first-flush drinking water samples and “running” hot water samples was investigated: building height, location, plumbing age, type of plumbing, and type of building. Results of this survey show that with the exception of building height, all factors had a correlation with one or more of the trace metals investigated. The trace metals examined were lead, copper, iron, and zinc. Lead was influenced primarily by building type, copper by plumbing age and type of plumbing, and iron by location. Elevated lead levels were associated with high-rise samples. New copper plumbing systems resulted in high copper levels. Highest iron levels in the drinking water were measured in the East Vancouver location. Zinc did not show a distinct correlation with any of the factors investigated. Brass faucets were the primary source of zinc in tap water. They also contributed substantially to the lead detected in the 1-L first-flush sample. Metal concentrations measured in the high-rise and house samples were compared with the U.S. Environmental Protection Agency's (USEPA) maximum contaminant levels (MCLs) and the proposed “no-action” level for lead. In high-rise samples, the 0.01 mg/L “no-action” level proposed for lead was exceeded in 43% of the samples, and 62% of the samples exceeded the current 1.0 mg/L MCL standard for copper. In single-family house samples, these values were 47% and 73%, respectively. The average lead concentrations were 0.020 mg/L for all high-rise samples and 0.013 mg/L for house samples. Regulatory levels stated above would still be exceeded in 6% of the cases for lead and 9% of the cases for copper, even after prolonged flushing of the tap in a high-rise building. In all cases associated with single-family houses, flushing the cold water tap for 5 minutes was successful in achieving compliance levels. Key words: aggressive water, compliance, corrosive, drinking water, first-flush, GVRD, high-rise, single-family house, trace metals, USEPA.

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